A system and method to collaborate participants of different administrative domains in a workflow process is provided. The common electrode is connected to a common wiring via a fourth aperture formed on the second interlayer insulating film, and a fifth aperture that is included in a bottom portion of the fourth aperture and is formed on the first interlayer insulating film, and a contact electrode that is formed in the fourth aperture and the fifth aperture. The communication unit may be configured to receive a representation of sensor data being measured at different times by a sensor unit associated with a product. In a preferred embodiment the Cr alloy underlayer is followed by an onset layer and a magnetic layer, or by two or more magnetic layers antiferromagnetically coupled through one or more spacer layers. A plurality of hook members is provided and each has a hook portion and a threaded portion. A flat spring is carried by the stationary portion and abutting the back-up bearing.